Multifamily Loans October 18, 2018 203(b) Loans, FHA 203b MIP in Relation to 203(b) Loans Multifamily Loans October 18, 2018 203(b) Loans, FHA 203b An MIP, or mortgage insurance premium, is the way that FHA 203(b) loan borrowers pay for FHA mortgage insurance. FHA MIP is designed to protect the lender in case the borrower defaults on their mortgage.